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Finding the Fourth Proportional to 8,472.50, 12,717.35 and 4,093.64

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Solution

The fourth proportional to 8,472.50, 12,717.35 and 4,093.64 is: 6,144.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472.50 : 12,717.35 = 4,093.64 : x
  2. Step 2: Convert to fraction form
    8,472.50/12,717.35 = 4,093.64/x
  3. Step 3: Cross multiply
    8,472.50x = 12,717.35 × 4,093.64
  4. Step 4: Simplify right side
    8,472.50x = 52,060,168.60
  5. Step 5: Solve for x
    x = 52,060,168.60/8,472.50
  6. Step 6: Final answer
    x = 6,144.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.